Support for Zulu JDK

Change effective on 17 October 2016

Heroku’s support for Java, Scala, Clojure, Groovy and JRuby applications now includes the option of using the Azul® Zulu® JDK. Zulu is a 100% open source certified build of OpenJDK that is fully compliant with the Java SE standard.

To use Zulu with your app, create a system.properties file in the root directory of your application with the following contents: